Drinking straw



FIG. 1 is a bottom, front, left perspective view of a drinking straw showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged view of detail “8”, identified in FIG. 1. 

CLAIM The ornamental design for a drinking straw, as shown and described. 